Release notes come from app-stores' changelog action, into the deb and rpm too

The release's "What's new" is now written by the shared generator every Arasaka
release uses, from the same commit messages and with the same "me-web? x.y.z:" prefix
removed; the deb and rpm carry it as their changelog (apt changelog, rpm --changelog),
and CHANGELOG.md is attached beside the files and listed in SHA256SUMS.txt.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitea/workflows/release.yml

@@ -22,6 +22,15 @@ jobs:
       - name: Prepare
         run: .gitea/scripts/prepare.sh
 
+      - name: Release notes from the commit messages since the previous tag
+        uses: https://git.thepra.dev/Arasaka/app-stores/changelog@v1
+        with:
+          prefix: v
+          name: me-web?
+          strip: '^["“]?me-web\?["”]? [\d.]+:\s*'
+          packager: Arasaka di Hvozdikov Yevheniy <https://arasaka.software/contact>
+          output: artifacts/notes
+
       - name: The server
         run: tools/release.sh server --commit "$COMMIT"
 
@@ -43,6 +52,9 @@ jobs:
           MEWEB_KEYSTORE_PASS: ${{ secrets.MEWEB_KEYSTORE_PASS }}
         run: .gitea/scripts/android.sh
 
+      - name: The changelog beside the files
+        run: cp artifacts/notes/CHANGELOG.md "releases/$VERSION/"
+
       - name: The rpm signed with the Arasaka packages key
         if: ${{ github.ref_type == 'tag' }}
         env:

tools/release.cs

@@ -78,7 +78,8 @@ return failed ? 1 : 0;
 void WriteNotes()
 {
   var source = Path.Combine(root, "artifacts", "knowledge", "SOURCE.txt");
-  var lines = Changes();
+  var notes = Path.Combine(root, "artifacts", "notes", "notes.md");
+  var lines = File.Exists(notes) ? [.. File.ReadAllLines(notes), ""] : new List<string>();
   lines.AddRange(
   [
     $"me-web? {version}, commit {commit}, built {builtAt}.",
@@ -92,26 +93,6 @@ void WriteNotes()
   File.WriteAllLines(Path.Combine(root, "artifacts", "release-notes.md"), lines);
 }
 
-List<string> Changes()
-{
-  var previous = Capture("git", "-C", root, "describe", "--tags", "--abbrev=0", "--match", "v*", "HEAD^").Trim();
-  var log = Capture("git", "-C", root, "log", "--no-merges", "--reverse", "--format=%x1e%s%x1f%b", previous.Length > 0 ? $"{previous}..HEAD" : "HEAD");
-  var lines = new List<string>();
-  foreach (var entry in log.Split('\x1e', StringSplitOptions.RemoveEmptyEntries))
-  {
-    var parts = entry.Split('\x1f');
-    var subject = Regex.Replace(parts[0].Trim(), @"^[""“]?me-web\?[""”]? [\d.]+:\s*", "");
-    if (subject.Length == 0) continue;
-    var body = (parts.Length > 1 ? parts[1] : "").Split('\n').Select(l => l.TrimEnd())
-      .Where(l => !Regex.IsMatch(l, @"^[A-Za-z-]+-(By|Session|Off-By):", RegexOptions.IgnoreCase))
-      .Where(l => !l.Contains("claude", StringComparison.OrdinalIgnoreCase))
-      .SkipWhile(l => l.Length == 0).Reverse().SkipWhile(l => l.Length == 0).Reverse().ToList();
-    lines.AddRange([$"### {char.ToUpperInvariant(subject[0])}{subject[1..]}", ""]);
-    if (body.Count > 0) lines.AddRange([.. body, ""]);
-  }
-  return lines.Count == 0 ? [] : [$"## What's new in {version}", "", .. lines];
-}
-
 string[] Stamp() => [$"-p:Version={version}", $"-p:BuildCommit={commit}", $"-p:BuildTimeUtc={builtAt}"];
 
 string Linux()
@@ -151,6 +132,8 @@ string Linux()
   var png = Path.Combine(branding, "meweb-512.png");
   var svg = Path.Combine(branding, "meweb.svg");
   var yaml = Path.Combine(stage, "nfpm.yaml");
+  var history = Path.Combine(root, "artifacts", "notes", "changelog.yml");
+  var changelog = File.Exists(history) ? $"changelog: {history}" : "";
   File.WriteAllText(yaml, $"""
       name: meweb
       arch: amd64
@@ -163,6 +146,7 @@ string Linux()
       vendor: Arasaka di Hvozdikov Yevheniy
       homepage: https://git.thepra.dev/Arasaka/MeWeb
       license: AGPL-3.0-only
+      {changelog}
       description: |
         Can you run your own server from here? “me-web?” checks your connection and device and
         explains, in plain words, what you could host at home and what stands in the way.